.\" generated by cd2nroff 0.1 from CURLOPT_RESUME_FROM.md
.TH CURLOPT_RESUME_FROM 3 "2024-04-19" libcurl
.SH NAME
CURLOPT_RESUME_FROM \- offset to resume transfer from
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESUME_FROM, long from);
.fi
.SH DESCRIPTION
Pass a long as parameter. It contains the offset in number of bytes that you
want the transfer to start from. Set this option to 0 to make the transfer
start from the beginning (effectively disabling resume). For FTP, set this
option to \-1 to make the transfer start from the end of the target file
(useful to continue an interrupted upload).

When doing uploads with FTP, the resume position is where in the local/source
file libcurl should try to resume the upload from and it then appends the
source file to the remote target file.

If you need to resume a transfer beyond the 2GB limit, use
\fICURLOPT_RESUME_FROM_LARGE(3)\fP instead.
.SH DEFAULT
0, not used
.SH PROTOCOLS
All
.SH EXAMPLE
.nf
int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    long size_of_file;

    curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com");

    /* resume upload at byte index 200 */
    curl_easy_setopt(curl, CURLOPT_RESUME_FROM, 200L);

    /* ask for upload */
    curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);

    /* set total data amount to expect */
    curl_easy_setopt(curl, CURLOPT_INFILESIZE, size_of_file);

    /* Perform the request */
    curl_easy_perform(curl);
  }
}
.fi
.SH AVAILABILITY
Always
.SH RETURN VALUE
Returns CURLE_OK
.SH SEE ALSO
.BR CURLOPT_INFILESIZE (3),
.BR CURLOPT_RANGE (3),
.BR CURLOPT_RESUME_FROM_LARGE (3)